# SPDX-License-Identifier: GPL-2.0-only
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config SND_MPU401_UART
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tristate
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select SND_RAWMIDI
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config SND_OPL3_LIB
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tristate
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select SND_TIMER
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select SND_HWDEP
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select SND_SEQ_DEVICE if SND_SEQUENCER != n
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config SND_OPL4_LIB
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tristate
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select SND_TIMER
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select SND_HWDEP
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select SND_SEQ_DEVICE if SND_SEQUENCER != n
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# select SEQ stuff to min(SND_SEQUENCER,SND_XXX)
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config SND_OPL3_LIB_SEQ
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def_tristate SND_SEQUENCER && SND_OPL3_LIB
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select SND_SEQ_MIDI_EMUL
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select SND_SEQ_MIDI_EVENT
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config SND_OPL4_LIB_SEQ
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def_tristate SND_SEQUENCER && SND_OPL4_LIB
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select SND_SEQ_MIDI_EMUL
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select SND_SEQ_MIDI_EVENT
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config SND_VX_LIB
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tristate
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select FW_LOADER
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select SND_HWDEP
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select SND_PCM
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config SND_AC97_CODEC
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tristate
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select SND_PCM
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select AC97_BUS
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select SND_VMASTER
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menuconfig SND_DRIVERS
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bool "Generic sound devices"
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default y
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help
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Support for generic sound devices.
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if SND_DRIVERS
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config SND_PCSP
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tristate "PC-Speaker support (READ HELP!)"
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depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
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depends on INPUT
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select SND_PCM
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help
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If you don't have a sound card in your computer, you can include a
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driver for the PC speaker which allows it to act like a primitive
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sound card.
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This driver also replaces the pcspkr driver for beeps.
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You can compile this as a module which will be called snd-pcsp.
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WARNING: if you already have a soundcard, enabling this
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driver may lead to a problem. Namely, it may get loaded
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before the other sound driver of yours, making the
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pc-speaker a default sound device. Which is likely not
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what you want. To make this driver play nicely with other
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sound driver, you can add this in a configuration file under
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/etc/modprobe.d/ directory:
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options snd-pcsp index=2
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You don't need this driver if you only want your pc-speaker to beep.
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You don't need this driver if you have a tablet piezo beeper
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in your PC instead of the real speaker.
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Say N if you have a sound card.
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Say M if you don't.
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Say Y only if you really know what you do.
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config SND_DUMMY
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tristate "Dummy (/dev/null) soundcard"
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select SND_PCM
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help
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Say Y here to include the dummy driver. This driver does
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nothing, but emulates various mixer controls and PCM devices.
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You don't need this unless you're testing the hardware support
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of programs using the ALSA API.
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To compile this driver as a module, choose M here: the module
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will be called snd-dummy.
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config SND_ALOOP
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tristate "Generic loopback driver (PCM)"
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select SND_PCM
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select SND_TIMER
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help
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Say 'Y' or 'M' to include support for the PCM loopback device.
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This module returns played samples back to the user space using
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the standard ALSA PCM device. The devices are routed 0->1 and
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1->0, where first number is the playback PCM device and second
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number is the capture device. Module creates two PCM devices and
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configured number of substreams (see the pcm_substreams module
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parameter).
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The loopback device allows time sychronization with an external
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timing source using the time shift universal control (+-20%
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of system time).
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To compile this driver as a module, choose M here: the module
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will be called snd-aloop.
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config SND_VIRMIDI
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tristate "Virtual MIDI soundcard"
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depends on SND_SEQUENCER
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select SND_TIMER
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select SND_RAWMIDI
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select SND_SEQ_VIRMIDI
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select SND_SEQ_MIDI_EVENT
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help
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Say Y here to include the virtual MIDI driver. This driver
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allows to connect applications using raw MIDI devices to
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sequencer clients.
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If you don't know what MIDI is, say N here.
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To compile this driver as a module, choose M here: the module
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will be called snd-virmidi.
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config SND_MTPAV
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tristate "MOTU MidiTimePiece AV multiport MIDI"
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select SND_RAWMIDI
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help
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To use a MOTU MidiTimePiece AV multiport MIDI adapter
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connected to the parallel port, say Y here and make sure that
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the standard parallel port driver isn't used for the port.
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To compile this driver as a module, choose M here: the module
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will be called snd-mtpav.
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config SND_MTS64
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tristate "ESI Miditerminal 4140 driver"
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depends on PARPORT
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select SND_RAWMIDI
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help
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The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with
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additional SMPTE Timecode capabilities for the parallel port.
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Say 'Y' to include support for this device.
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To compile this driver as a module, chose 'M' here: the module
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will be called snd-mts64.
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config SND_SERIAL_U16550
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tristate "UART16550 serial MIDI driver"
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select SND_RAWMIDI
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help
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To include support for MIDI serial port interfaces, say Y here
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and read <file:Documentation/sound/cards/serial-u16550.rst>.
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This driver works with serial UARTs 16550 and better.
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This driver accesses the serial port hardware directly, so
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make sure that the standard serial driver isn't used or
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deactivated with setserial before loading this driver.
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To compile this driver as a module, choose M here: the module
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will be called snd-serial-u16550.
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config SND_MPU401
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tristate "Generic MPU-401 UART driver"
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select SND_MPU401_UART
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help
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Say Y here to include support for MIDI ports compatible with
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the Roland MPU-401 interface in UART mode.
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To compile this driver as a module, choose M here: the module
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will be called snd-mpu401.
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config SND_PORTMAN2X4
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tristate "Portman 2x4 driver"
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depends on PARPORT
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select SND_RAWMIDI
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help
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Say Y here to include support for Midiman Portman 2x4 parallel
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port MIDI device.
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To compile this driver as a module, choose M here: the module
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will be called snd-portman2x4.
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config SND_AC97_POWER_SAVE
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bool "AC97 Power-Saving Mode"
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depends on SND_AC97_CODEC
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default n
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help
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Say Y here to enable the aggressive power-saving support of
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AC97 codecs. In this mode, the power-mode is dynamically
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controlled at each open/close.
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The mode is activated by passing 'power_save=X' to the
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snd-ac97-codec driver module, where 'X' is the time-out
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value, a nonnegative integer that specifies how many
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seconds of idle time the driver must count before it may
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put the AC97 into power-save mode; a value of 0 (zero)
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disables the use of this power-save mode.
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After the snd-ac97-codec driver module has been loaded,
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the 'power_save' parameter can be set via sysfs as follows:
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echo 10 > /sys/module/snd_ac97_codec/parameters/power_save
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In this case, the time-out is set to 10 seconds; setting
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the time-out to 1 second (the minimum activation value)
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isn't recommended because many applications try to reopen
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the device frequently. A value of 10 seconds would be a
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good choice for normal operations.
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See Documentation/sound/designs/powersave.rst for more details.
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config SND_AC97_POWER_SAVE_DEFAULT
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int "Default time-out for AC97 power-save mode"
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depends on SND_AC97_POWER_SAVE
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default 0
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help
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The default time-out value in seconds for AC97 automatic
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power-save mode. 0 means to disable the power-save mode.
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See SND_AC97_POWER_SAVE for more details.
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endif # SND_DRIVERS
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